scholarly journals Remo measurement system: Development of a measuring system to assert on-water rowing performance

2020 ◽  
Author(s):  
Laura Cuijpers
Keyword(s):  
Measurement System ◽  
System Development ◽  
Coordination Dynamics ◽  
Computer Hardware ◽  
Measuring System ◽  
Digital Devices ◽  
Rowing Performance ◽  
Method Paper ◽  
Main Determinants ◽  
Training Practice

In crew rowing movement synchronisation is generally regarded as one of the main determinants of optimal performance. In my dissertation “Coordination dynamics of crew rowing” I conducted various studies to investigate rowers’ ability to coordinate their movements, both in traditional synchronised (in-phase) and the more innovative antiphase rowing, during which the rowers alternate their strokes (Cuijpers, 2019). To be able to measure crew coordination and the movements of the boat on-water, I developed a measurement system using open-source computer hardware and software that allows building digital devices and interactive objects. The aim of this method paper is to provide insight in how this measurement system was developed and build. While the measurement system was developed for scientific research, it can also be used in training practice to analyse crew technique and the effects thereof on boat behaviour for the benefit of crew performance.

scholarly journals Geometric Measurements on a CNC Machining Device as an Element of Closed Door Technology

Sensors ◽  
2021 ◽  
Vol 21 (14) ◽  
pp. 4852
Author(s):  
Grzegorz Bomba ◽  
Artur Ornat ◽  
Piotr Gierlak
Keyword(s):  
Measurement System ◽  
Measurement Process ◽  
Cnc Machining ◽  
Measuring System ◽  
Cnc Machine ◽  
Statistical Process ◽  
Working Space ◽  
Closed Door ◽  
Accuracy And Repeatability

The article discusses the quality testing of a measuring system consisting of a CNC machine with measuring probes. The research was conducted in a broader context regarding the implementation of the closed door technology, i.e., production without human intervention, in an aviation plant manufacturing aircraft gearbox systems. This technology may involve automated measuring operations performed in machining centers, and not in measuring laboratories, provided that the quality of the measurements is appropriate. The aim of the study was to investigate whether the CNC machining device can be used to measure the geometric features of aircraft gearbox housing. For this purpose, measurement experiments were carried out with the use of three different probes. Measurements were carried out using four sequences of increasing complexity, so that, after error analysis, it was possible to find the causes of possible irregularities. A reference ring with known dimensions and position in the working space of the machine was used for the measurements performed as part of the assessment of the measurement system. The quality of the measurements was evaluated with the use of repeatability and reproducibility testing and statistical process control. The analysis results showed that the tested measurement system ensures adequate accuracy and repeatability, and the measurement process is characterized with adequate efficiency in relation to the manufacturing tolerance of the components produced using the machine. Thus, it was proven that the measurement process can be carried out on a machining device, which enables its integration into the closed door technology.

Laser-Based Measurement of Over Dimensional Freight Rail Shipments

2012 ◽  
Author(s):  
Bryan W. Schlake ◽  
Brian S. Daniel ◽  
Ron Voorheis
Keyword(s):  
Measurement System ◽  
Human Error ◽  
Cost Effective ◽  
Measuring System ◽  
Prototype System ◽  
Reference Target ◽  
Potential Benefits ◽  
Multiple Measurements ◽  
Current Measuring ◽  
Time Required

In pursuit of improved safety, Norfolk Southern Corp. (NS) has partnered with Amberg Technologies to explore the potential benefits of a laser-based measurement system for measuring over dimensional freight rail shipments. Shipments that do not fall within a standard geometric envelope, denoted as Plate B in the Association of American Railroads (AAR) Open Top Loading Rules [1], are considered to be over dimensional, or High-Wide Loads (HWLs). Extending beyond the limits of the Plate B diagram, these loads are not permitted in unrestricted interchange service. Instead, they must be measured both at points of origin and at interchange points. For US Class I Railroads, the de facto method for measuring HWLs requires mechanical personnel to either climb on the equipment or use a ladder and physically measure the overall height and width of the load. Using a tape measure, plumb line, and 6-foot level, car inspectors, or carmen, must often make multiple measurements to determine the height or width of a critical point on the load. The summation of these measurements can be subject to mathematical human error. In addition to the inherent limitations with regards to accuracy and efficiency, this method of measurement presents considerable safety challenges. The objective of the project was to develop a portable, cost-effective and accurate measurement system to improve the day-to-day operational process of measuring HWLs and reduce human exposure to railyard hazards. Norfolk Southern worked closely with Amberg Technologies to provide a clear overview of the current measuring methods, requirements, challenges and risks associated with HWLs. Amberg then developed a prototype system (with patent pending) and successful tests have been completed at both a point of origin for NS shipments and at a location where HWLs are received at interchange. The measuring system consists of a tripod mounted laser, a specially designed track reference target (TRT) and software designed specifically for HWL measurements. The system allows car inspectors to take measurements from a safe, strategic location away from the car. As a result, this system eliminates the need to climb on the equipment or a ladder and greatly reduces the amount of time spent on and around live tracks. In addition, initial tests indicate that this technology reduces the labor time required to measure HWLs by as much as one half while improving measurement accuracy. These tests have demonstrated that a laser-based system has the potential to greatly improve the safety, efficiency and accuracy associated with measuring HWLs.

scholarly journals Photogrammetric measurement system generating algorithm by primary input data

2021 ◽  
pp. 82-89
Author(s):  
Алексей Николаевич Самойлов ◽  
Юрий Михайлович Бородянский ◽  
Александр Валерьевич Волошин
Keyword(s):  
Information Technology ◽  
Measurement System ◽  
Input Data ◽  
Metallurgical Industry ◽  
Measuring System ◽  
Adjustment Process ◽  
Traditional Methods ◽  
Primary Input ◽  
Measurement Systems ◽  
Photogrammetric Measurement

В процессе автоматизации решения прикладных измерительных задач, в том числе на базе фотограмметрических методов, возникает проблема соответствия измерительной системы объекту и условиям измерения. Для того чтобы измерительная система позволяла заранее оценить возможность получения достоверных результатов, а также наилучшим образом подстраивалась под условия измерения, необходимо наличие специализированных алгоритмов и моделей. В общем случае такие модели ориентированы на квалифицированных технических специалистов, обладающих необходимыми знаниями в области информационных технологий. Особенностью применения фотограмметрических измерительных систем в лесной и металлургической промышленности является низкая квалификация пользователей в сфере информационных технологий, что обуславливается характером выполняемых работ и условиями привлечения. Данный фактор не позволяет решить задачу подстройки системы традиционными методами, в которых процессом настройки управляет пользователь. В этой связи в статье предлагается модель и алгоритм формирования измерительной системы по первичным входным данным, в котором процессом настройки управляет сама система. In the process of automating the solution of applied measurement tasks, including on the basis of photogrammetric methods, there is a problem of compliance of the measurement system with the object and measurement conditions. In order for the measuring system to assess in advance the possibility of obtaining reliable results, as well as to best adapt to the conditions of measurement, it is necessary to have specialized algorithms and models. In general, such models are aimed at qualified technicians with the necessary knowledge in the field of information technology. A feature of the application of photogrammetric measurement systems in the forestry and metallurgical industry is the low qualification of users in the field of information technology, which is determined by the nature of the work performed and the conditions of attraction. This factor does not solve the problem of adjusting the system by traditional methods in which the user controls the configuration process. In this regard, the article proposes a model and algorithm for forming a measuring system from primary input data, in which the system itself controls the adjustment process.

A Conceptual Design of a Measuring System of Tennis Batting Motion Attitude Based on MEMS Sensors

2012 ◽  
Vol 198-199 ◽  
pp. 1053-1056
Author(s):  
Liang Han ◽  
Jing Song Jin ◽  
Wei Zhang
Keyword(s):  
Measurement System ◽  
Position Control ◽  
Dimensional Space ◽  
Three Dimensional ◽  
Human Movement ◽  
Sports Injury ◽  
Measuring System ◽  
Attitude Measurement ◽  
Instructional Role ◽  
System Composition

Tennis is a very elegant sport, with a strong sense of competitiveness and appreciation, which has gained more and more attentions in our country, and it tends to be a fashion. This project is to achieve the measurement of tennis batting motion attitude in three dimensional space using a combination of the three-axis MEMS(Micro-electromechanical Systems) sensors, and make research on the principle of measurement system, composition and data acquisition. Body posture measurement system is to measure the attitude measurement in human movement, it can be applied to study the movement posture or to meet the requirements of position control, which provides theoretical foundation for scientific training and prevention of sports injury and also plays a significant and instructional role in improving the training levels of tennis playing and generalizing nationwide fitness campaign.

scholarly journals Uncertainty analysis of measuring system for instantaneous power research

2012 ◽  
Vol 19 (3) ◽  
pp. 573-582 ◽  
Author(s):  
Ariel Dzwonkowski ◽  
Leon Swędrowski
Keyword(s):  
Spectral Analysis ◽  
Induction Motor ◽  
Measurement System ◽  
Electrical Power ◽  
Induction Machine ◽  
Uncertainty Estimation ◽  
Measuring System ◽  
Metrological Analysis ◽  
Instantaneous Power ◽  
Measurement And Analysis

Abstract The electrical power drawn by an induction motor is distorted in case of appearance of a certain type of failures. Under spectral analysis of the instantaneous power one obtains the components which are connected with definite types of damage. An analysis of the amplitudes and frequencies of the components allows to recognize the type of fault. The paper presents a metrological analysis of the measurement system used for diagnosis of induction motor bearings, based on the analysis of the instantaneous power. This system was implemented as a set of devices with dedicated software installed on a PC. A number of measurements for uncertainty estimation was carried out. The results of the measurements are presented in the paper. The results of the aforementioned analysis helped to determine the measurement uncertainty which can be expected during bearing diagnostic measurements, by the method relying on measurement and analysis of the instantaneous power of an induction machine.

scholarly journals Research on Reducer Power Measurement System of Bridge Crane

2018 ◽  
Vol 198 ◽  
pp. 01003
Author(s):  
Zhihao Ge ◽  
Yifei Tong ◽  
Meng Zhong ◽  
Xiangdong Li
Keyword(s):  
Measurement System ◽  
Measurement Method ◽  
Power Measurement ◽  
Measuring System ◽  
Bridge Crane ◽  
Host System

In this paper, the reducer is taken as the research object for power measurement. First, the demand of reducer power measurement is analyzed, and the method for measuring power is determined. Then, in view of the power measurement method adopted by the reducer, the overall framework of the measuring system is carried out, and the host system is designed.

scholarly journals Sugar Concentration Measurement System Using Radiofrequency Sensor

Sensors ◽  
2019 ◽  
Vol 19 (10) ◽  
pp. 2354
Author(s):  
Gerardo Aguila Rodriguez ◽  
Nayda Patricia Arias Duque ◽  
Blanca Estela Gonzalez Sanchez ◽  
Oscar Osvaldo Sandoval Gonzalez ◽  
Oscar Hernan Giraldo Osorio ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Measurement System ◽  
Ac Conductivity ◽  
Experimental Error ◽  
Sucrose Solution ◽  
Measuring System ◽  
Sugar Solution ◽  
Frequency Range ◽  
Tan Δ ◽  
Radiofrequency Sensor

A sugar solution measurement system was developed based on the dielectric properties of the sucrose molecule. An ac conductivity and tan δ study as a function of the frequency was performed to find the suitable frequency range for the measuring system. The results indicate that it is possible to obtain a better response of the sensor using the frequencies as the maxima peak in tan δ appears. Developed setup for sucrose solution was appropriate to measure in a 0.15 to 1 g/mL range with an experimental error of about 3%. The proposed system improves the measurement time over some other methods.

Agile performance measurement system development: an answer to the need for adaptability?

2019 ◽  
Vol 15 (2) ◽  
pp. 231-256 ◽  
Author(s):  
Kati Tuulikki Stormi ◽  
Teemu Laine ◽  
Tuomas Korhonen
Keyword(s):  
Performance Measurement ◽  
Measurement System ◽  
Management Accounting ◽  
System Development ◽  
Development Project ◽  
Performance Measurement System ◽  
Agile Development ◽  
New Approach ◽  
Content Type ◽  
Agile Methodologies

Purpose The purpose of this study is to reflect upon the feasibility of agile methodologies, Scrum in particular, to supplement the procedural design and implementation of performance measurement systems (PMS). Design/methodology/approach The study is an interventionist case study that applied agile methodologies in the PMS development. Researchers actively participated in the PMS development, e.g. researchers designed some of the performance measurement prototypes in order to facilitate the agile development. Findings The study outlines an agile approach suitable for PMS development. The paper answers the topical needs for adaptability and agility in management accounting, by applying agile methodologies into PMS development. PMS development does not take place only as a project or process that systematically progresses from the measure selection to measure implementation. Instead, as the requirements for the PMS change during the development project, management may reject some measures and new measures emerge as the understanding about changing situations increase. Agile methodologies are a methodological way to respond to the inevitable change and to enhance management accounting adaptability. Research limitations/implications This study contributes to the PMS literature by proposing that agile development methodologies can advance organizational features that increase management accounting adaptability. As a result, the study proposes a new approach for PMS development to supplement existing ones. Agile methodologies are especially suitable for extending the PMS in new, yet relatively immature areas of performance measurement. The new approach applies Scrum principles in PMS development. By drawing from the theories of performance measurement (system) development and enabling PMS, the paper furthers academic understanding about agile development of accounting information systems. Practical implications Companies can use the proposed approach in PMS development, particularly after the initial system implementation in redesigning the system. The approach may increase the PMS impact in organizations and prevent PMS implementation failures. Originality/value The paper identifies the potential of using agile methodologies to enhance PMS adaptability and provides preliminary evidence of the potential of such approach in supplementing processual PMS development frameworks.

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